Build a habit of focusing with the Pomodoro time management technique

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■ Pomodoro Time Management Technique
Repeat cycles of "25 minutes focus / 5 minutes break"
Repeat small goals and take short breaks in between

■ Stopwatch
If you don't want to bother with settings just measure your study time with the stopwatch.

■ Timer
Register and measure timers as needed
Register timers for mock exams breaks and more.

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App permissions explained
CAMERA - Needed to take background photos directly.
QUERY_ALL_PACKAGES - Needed to set allowed apps.
AccessibilityService API - Needed to lock other apps during focus mode.

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When tasks pile up just do it.
Think "I can" instead of "how do I do this." 😌